Replace some memset call by zeromem
Replace all use of memset by zeromem when zeroing moderately-sized
structure by applying the following transformation:
memset(x, 0, sizeof(x)) => zeromem(x, sizeof(x))
As the Trusted Firmware is compiled with -ffreestanding, it forbids the
compiler from using __builtin_memset and forces it to generate calls to
the slow memset implementation. Zeromem is a near drop in replacement
for this use case, with a more efficient implementation on both AArch32
and AArch64.
Change-Id: Ia7f3a90e888b96d056881be09f0b4d65b41aa79e
Signed-off-by: Douglas Raillard <douglas.raillard@arm.com>
diff --git a/plat/qemu/qemu_bl2_setup.c b/plat/qemu/qemu_bl2_setup.c
index dba3bee..738d671 100644
--- a/plat/qemu/qemu_bl2_setup.c
+++ b/plat/qemu/qemu_bl2_setup.c
@@ -1,5 +1,5 @@
/*
- * Copyright (c) 2015-2016, ARM Limited and Contributors. All rights reserved.
+ * Copyright (c) 2015-2017, ARM Limited and Contributors. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
@@ -35,7 +35,7 @@
#include <platform_def.h>
#include "qemu_private.h"
#include <string.h>
-
+#include <utils.h>
/*
* The next 2 constants identify the extents of the code & RO data region.
@@ -91,7 +91,7 @@
* Initialise the memory for all the arguments that needs to
* be passed to BL3-1
*/
- memset(&bl31_params_mem, 0, sizeof(bl2_to_bl31_params_mem_t));
+ zeromem(&bl31_params_mem, sizeof(bl2_to_bl31_params_mem_t));
/* Assign memory for TF related information */
bl2_to_bl31_params = &bl31_params_mem.bl31_params;